X are found only in China but are popular across the world due to their appearance. Recognizing this, China started giving them as gifts to nations, which with it had friendly ties. However, in 1984 this stance was changed and China started leasing them out, rather than straight up gifting. The rentals started with $50,000 per month, but were then changed to US$1 million per year.
Getting the opportunity to rent one is considered an honour and signifies the diplomatic relationship with China.
What am I talking about?